TPS73718DCQRG4 - Texas Instruments

Manufacturer Part Number

TPS73718DCQRG4

Manufacturer

Texas Instruments

Introduction

Low drop-out regulator offering low quiescent current and fast transient response for power-sensitive applications.

Product Features and Performance

Positive, fixed output linear regulator

Single regulator integration

Supports an input voltage up to 5.5V

Provides a fixed output voltage of 1.8V

Maximum voltage dropout of 0.5V at 1A load

Output current capacity of 1A

Quiescent current of 400 µA, maximizing battery life

Supply current of maximally 1.3 mA for less power consumption

PSRR of 58dB to 37dB across 100Hz to 10kHz frequency range, ensuring stable voltage

Enable control feature for power sequence management

Overcurrent and overtemperature protection features for safety

Reverse polarity protection increases robustness

Operates over a wide temperature range from -40°C to 125°C

Product Advantages

Optimized for battery-powered devices due to low Iq

Good PSRR minimizing output voltage ripple

Thermal and current protection features enhancing system reliability

Reverse polarity protection for inadvertent power supply reversal

Long operational temperature range suited for harsh environments

Key Technical Parameters

Voltage - Input (Max): 5.5V

Voltage - Output (Min/Fixed): 1.8V

Current - Output: 1A

Voltage Dropout (Max): 0.5V @ 1A

Current - Quiescent (Iq): 400 µA

Current - Supply (Max): 1.3 mA

Power Supply Rejection Ratio (PSRR): 58dB ~ 37dB (100Hz ~ 10kHz)

Quality and Safety Features

Overcurrent protection

Overtemperature protection

Reverse polarity protection

Compatibility

Surface mount compatible

SOT-223-6 package

Application Areas

Portable and battery-powered electronics

Point-of-load power supplies

Sensitive analog circuits

Product Lifecycle

Discontinued at Digi-Key

Potential replacement products or upgrades should be checked with manufacturer

Several Key Reasons to Choose This Product

Highly efficient for power-sensitive applications

Robust safety features for increased reliability

Low dropout voltage for continuous performance under varying loads

Energy-saving with ultra-low quiescent current

High PSRR for noise-sensitive applications

Wide operating temperature range suitable for various environments

Easy integration with surface mount technology